Roof-bracket.



Y W. GRAFFAM.

ROOF BRACKET.

APPLIUATIOI FILED OUT. 22, 1908.

Patented Mar. 14, 1911.

UNITED STATES PATENT OFFICE.

WARREN GRAFFAM, 0F SOMERVILLE, MASSACHUSETTS.

ROOF-BRACKET.

To all whom it may concern:

Be it known that I, WARREN GRAFFAM, a citizen of the United States,residing at Somerville, in the county of Middlesex and State ofMassachusetts, have invented a new and useful Improvement inRoof-Brackets, of which the following is a specification.

My invention relates to improvements in roof brackets to be used on roofor chimney construction or repair; it may also be used on the sides ofstructures wherever there is a projection of suflicient strength towhich the bracket may be hooked; and the objects of my improvements are,to provide a strong and compact device, capable of being transportedwith ease, and having its several parts so arranged as to enable theoperator to assemble them quickly, and to place the bracket in positionfor use. I attain these objects by the device illustrated in theaccompanying drawing, in which Figure 1. is a side view of the bracketin position on a portion of a roof, and at tached to the ridge polethereof. Fig. 2. is a plan view of the bracket, Fig. 3. is a front view,and Fig. 4. is a detail showing an extension device.

Similar letters refer to similar throughout the several views.

A. and A represent the base composed of three sections.

a. and a? represent extension bars which rest on the roof or wall, thelower bars a? being provided with a hook extension B. which can behooked over a ridgepole, gutter, cornice, or any projection ofsufficient strength, and thereby serves to hold the parts Specificationof Letters Patent. Application filed October 22, 1908.

Patented Mar. 14, 1911. Serial No. 459,109.

bracket in place. These extension bars slide upon each other, and areheld in place by clamps b. 6. which are inserted in the holes d in thebars a. a. as shown in Fi 1. On the upper bars a. are cars a. a. to wich are pivoted standards (6. of, and these standards hold bars a? a. atany desired angle, said being pivoted at a. to the sliding bar a. Thestandards a. a? are provided with rack teeth a5, and small metal clips0. 0. engage in these rack teeth on the bars a3 a on these metal clipsrest the horizontal bars a. a The upright bars 0;. m are also providedwith cross-bars d. and corner braces e. 6. which are held in place onbars (1. by screw hooks f. f3.

I claim:

1. The herein described roof bracket, composed of an extensible base,being provided with ears, and upright and horizontal bars pivoted to thebase, the upright bars being provided with means for holding a cross barand corner braces in any desired position.

2. A roof bracketcomposed of extensible base pieces, slidable upon eachother, and held together in any desired position by clamps, the uppersection being provided wit-h ears; two upright and two horizontal barspivoted to said ears and cross bars and corner braces attached to same,and metal clips for holding said bars in place.

WARREN GRAFFAM.

Witnesses:

CROFTON M. MOLEOD, ERNEST MGKAY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. 0.

